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Dr. Maria Oliva-Hemker, MD

Pediatric Gastroenterology

Dr. Oliva-Hemker's Overview

Dr. Maria Oliva-Hemker graduated from the Johns Hopkins University School of Medicine in 1986. She works in Baltimore, MD and specializes in Pediatric Gastroenterology. Dr. Oliva-Hemker is affiliated with Greater Baltimore Medical Center, Howard County General Hospital and The Johns Hopkins Hospital.

Dr. Oliva-Hemker's Experience

Years in Practice: 29

Dr. Oliva-Hemker's Specialties

Pediatric Gastroenterology

Dr. Oliva-Hemker's Education & Training

Medical School: Johns Hopkins University School of Medicine; Graduated 1986

Dr. Oliva-Hemker's Rating

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Overall Rating


  • Explains conditions & treatments
  • Takes time to answer my questions
  • Provides follow-up as needed
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Dr. Oliva-Hemker's Accepted Insurance

  • BCBS Blue Card PPO
  • CareFirst BlueChoice Advantage
  • CareFirst BlueChoice Ntwk POS
  • CareFirst BluePreferred PPO
  • CareFirst Maryland POS
  • CIGNA Open Access Plus
  • Coventry PPO - DE
  • Coventry Southern Health PPO
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Dr. Oliva-Hemker's Office Information & Appointments

Office Locations

Johns Hopkins Community Physician
Johns Hopkins Pediatric Gastroenterology

600 N Wolfe St
Baltimore, MD 21287
(410) 955-8769


Office Hours and Information

Fax: (410) 955-1464

Practice Website:

Accepting New Patients: Yes

Medicare Accepted: Yes

Medicaid Accepted: Yes

Monday 8:30 AM - 5:00 PM
Tuesday 8:30 AM - 5:00 PM
Wednesday 8:30 AM - 5:00 PM
Thursday 8:30 AM - 5:00 PM
Friday 8:30 AM - 5:00 PM
Saturday Closed
Sunday Closed

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